3.
C3H3(g) + O2(g) CO2(g) + H2O(g)
Find the mass of CO2 released by 1.95 moles of C3Hz.

1) how many electrons are in each energy level of the following elements? a. he b. na c. na d. ne 2) how many valence electrons are percent in the following atoms? a. s b. mg c. be d. cl 3) which of the following elements are stable as atoms? a. he b. o c. cl d. ar if you are able to provide the work as to how you got the answers that would be greatly appreciated. : )

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

The fact that the total amount of energy in a system remains constant is a(n)